Results 61 to 70 of about 5,363 (146)

Addressing Various Strategies for Combating the Leaf-Roll Virus in Potato Plants

open access: yesInternational Journal of Mathematics and Mathematical Sciences
In this research, we introduced a mathematical simulation that describes the transmission dynamics of the potato leaf-roll virus (PLRV) and involves some control measures to eliminate the propagation of the PLRV disease.
S. A. Alharbi   +4 more
doaj   +1 more source

Stable Camera Motion Estimation Using Convex Programming

open access: yes, 2015
We study the inverse problem of estimating n locations $t_1, ..., t_n$ (up to global scale, translation and negation) in $R^d$ from noisy measurements of a subset of the (unsigned) pairwise lines that connect them, that is, from noisy measurements of ...
Basri, Ronen   +2 more
core   +1 more source

Breaking Barriers in High‐Order Spectral Methods: The Intrinsic Matrix Approach

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 5, 15 March 2026.
ABSTRACT This paper introduces a unified framework in Hilbert spaces for applying high‐order differential operators in bounded domains using Chebyshev, Legendre, and Fourier spectral methods. By exploiting the banded structure of differentiation matrices and embedding boundary conditions directly into the operator through a scaling law relating ...
Osvaldo Guimarães, José R. C. Piqueira
wiley   +1 more source

Modeling Airborne Influenza in Three Dimensions

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
A novel 3D fluid dynamics model demonstrates how influenza outbreaks spread spatially via “epidemic flow.” Simulations reveal that direct contact is the dominant transmission route over aerosol spread, offering a new tool to inform targeted public health interventions and spatially‐aware risk assessment.
Daniel Ugochukwu Nnaji   +4 more
wiley   +1 more source

A diffusion-based HIV model with inflammatory cytokines and adaptive immune impairment

open access: yesFrontiers in Applied Mathematics and Statistics
HIV continues to pose a critical threat to global public health, contributing to a high number of deaths worldwide. The virus predominantly attacks CD4+T lymphocytes, which are essential for coordinating immune responses.
N. H. AlShamrani
doaj   +1 more source

Dynamic Earthquake Source Inversion With Generative Adversarial Network Priors

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Dynamic earthquake source inversion consists of inferring frictional parameters and initial stress on a fault consistent with recorded seismological and geodetic data and with dynamic earthquake rupture models. In a Bayesian inversion approach, the nonlinear relationship between model parameters and data requires a computationally demanding ...
Jan Premus, Jean Paul Ampuero
wiley   +1 more source

A Mathematical Model for the Within-Host Dynamics of Malaria Parasite with Adaptive Immune Responses

open access: yesInternational Journal of Mathematics and Mathematical Sciences
Mathematical analysis of epidemics is crucial for long-term disease prediction and helps to guide decision-makers in terms of public health policy. In this study, we develop a within-host mathematical model of the malaria parasite dynamics with the ...
Jemal Muhammed Ahmed   +2 more
doaj   +1 more source

Stochastic analysis of Mpox epidemiology with vaccination strategies and environmental persistence

open access: yesScientific Reports
In the context of global preparedness and response strategies for Mpox outbreaks, we develop a comprehensive mathematical model to investigate its transmission dynamics, integrating critical factors such as vaccination coverage and environmental ...
Faizunnesa Khondaker, Md. Kamrujjaman
doaj   +1 more source

Co-dynamics of hepatitis B and C viruses under the influence of CTL immunity

open access: yesAlexandria Engineering Journal
Understanding the cytotoxic T lymphocyte (CTL) immune response against hepatitis B virus (HBV) and hepatitis C virus (HCV) infections is crucial, as these infections can lead to liver cirrhosis and cancer. Mathematical models provide valuable support for
A.M. Elaiw   +3 more
doaj   +1 more source

Stability and bifurcation analysis of a nested multi-scale model for COVID-19 viral infection

open access: yesComputational and Mathematical Biophysics
In this study, a nested multi-scale mathematical model is proposed and studied for COVID-19 viral infection. The well-posedness of the multi-scale model is discussed, followed by the stability analysis of the equilibrium points. The proposed model admits
Chhetri Bishal, Vamsi Dasu Krishna Kiran
doaj   +1 more source

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